GB380110A - Improved method and apparatus for the production of nitrogen and hydrogen by the thermal decomposition of ammonia - Google Patents
Improved method and apparatus for the production of nitrogen and hydrogen by the thermal decomposition of ammoniaInfo
- Publication number
- GB380110A GB380110A GB16288/31A GB1628831A GB380110A GB 380110 A GB380110 A GB 380110A GB 16288/31 A GB16288/31 A GB 16288/31A GB 1628831 A GB1628831 A GB 1628831A GB 380110 A GB380110 A GB 380110A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- tubes
- ammonia
- chamber
- decomposition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/02—Preparation of nitrogen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/047—Decomposition of ammonia
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Catalysts (AREA)
Abstract
<PICT:0380110/III/1> In the thermal decomposition of ammonia into nitrogen and hydrogen, the ammonia, preheated by the outgoing decomposition products, is decomposed by passage in two stages over a catalyst, an electric heater being provided between the stages to heat the partially decomposed gases. As the major part of the decomposition is effected in the first catalytic stage, no injurious action on the electric heating wire is experienced. As catalyst, magnetic oxide of iron containing small amounts of potash and alumina and reduced in hydrogen may be employed. In the apparatus shown, catalytic chambers 16, 17 are constituted by three concentric tubes 1, 2, 3, the first two being welded to a lower plate 4 and the third to an upper plate 5, spaces being left between the tubes 2, 3 and the plates 5, 4 respectively. The outermost tube 1 is also secured to the upper plate 5 and an electric heating wire 7 is wound round the innermost tube 3. Preheating of the ammonia to be decomposed is effected in a coiled preheater formed from concentric tubes 11, 12, ammonia, preferably in the liquid form, being supplied by a tube 21 to the space between the tubes 11, 12. The decomposition products are conveyed from the chamber 17 to the inner tube 12 by tubes 13, 14; a pyrometer may be inserted through a tube 23 into the chamber 17 where the temperature is maintained at about 550 DEG C. by a temperature regulator 20 of known kind inserted by the tube 13 into the inner chamber 17. The apparatus is contained in a casing 19 and surrounded by heat-insulating material and the tubes 1, 2 are made of stainless steel or monel metal. In operation, liquid ammonia supplied by the tube 21 is vaporized and preheated by the outgoing gases and is delivered to the base of the catalytic chamber 16 whence is passes over the electric heater 7 to the catalytic chamber 17 where the decomposition is completed, the gases being delivered to the inner tube 12 of the preheater by the tubes 13, 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16288/31A GB380110A (en) | 1931-06-04 | 1931-06-04 | Improved method and apparatus for the production of nitrogen and hydrogen by the thermal decomposition of ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16288/31A GB380110A (en) | 1931-06-04 | 1931-06-04 | Improved method and apparatus for the production of nitrogen and hydrogen by the thermal decomposition of ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB380110A true GB380110A (en) | 1932-09-05 |
Family
ID=10074611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16288/31A Expired GB380110A (en) | 1931-06-04 | 1931-06-04 | Improved method and apparatus for the production of nitrogen and hydrogen by the thermal decomposition of ammonia |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB380110A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896168A (en) * | 2021-10-14 | 2022-01-07 | 西南化工研究设计院有限公司 | Method for preparing hydrogen or reducing gas by two-stage ammonia cracking |
-
1931
- 1931-06-04 GB GB16288/31A patent/GB380110A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896168A (en) * | 2021-10-14 | 2022-01-07 | 西南化工研究设计院有限公司 | Method for preparing hydrogen or reducing gas by two-stage ammonia cracking |
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